X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=dali%2Fpublic-api%2Fmath%2Fquaternion.cpp;h=853cb09aaa3019b5c4b40ae04f9cf8384401ef84;hb=646f736e77b085c86e982c0d1d4b895c2a431330;hp=49d7ae09b9a541f8d859dc9d82df992e2fed2c18;hpb=6a51fca768ccd75d552b73c0a67056721dc86e44;p=platform%2Fcore%2Fuifw%2Fdali-core.git

diff --git a/dali/public-api/math/quaternion.cpp b/dali/public-api/math/quaternion.cpp
index 49d7ae0..853cb09 100644
--- a/dali/public-api/math/quaternion.cpp
+++ b/dali/public-api/math/quaternion.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -40,18 +40,18 @@ const Quaternion Quaternion::IDENTITY;
  * Default Constructor
  */
 Quaternion::Quaternion()
- : mVector( 0.0f, 0.0f, 0.0f, 1.0f )
+: mVector( 0.0f, 0.0f, 0.0f, 1.0f )
 {
 }
 
-Quaternion::Quaternion( float cosThetaBy2, float iBySineTheta, float jBySineTheta, float kBySineTheta ) :
-  mVector( iBySineTheta, jBySineTheta, kBySineTheta, cosThetaBy2 )
+Quaternion::Quaternion( float cosThetaBy2, float iBySineTheta, float jBySineTheta, float kBySineTheta )
+: mVector( iBySineTheta, jBySineTheta, kBySineTheta, cosThetaBy2 )
 {
 }
 
 Quaternion::Quaternion( const Vector4& vector )
+: mVector( vector )
 {
-  mVector = vector;
 }
 
 Quaternion::Quaternion( Radian angle, const Vector3& axis )
@@ -302,12 +302,12 @@ bool Quaternion::operator!=( const Quaternion& rhs ) const
 
 float Quaternion::Length() const
 {
-  return (float)sqrt(mVector.w * mVector.w + mVector.Dot(mVector));
+  return static_cast< float >( sqrt(mVector.w * mVector.w + mVector.Dot(mVector) ) );
 }
 
 float Quaternion::LengthSquared() const
 {
-  return (float)(mVector.w * mVector.w + mVector.Dot(mVector));
+  return static_cast< float >( mVector.w * mVector.w + mVector.Dot(mVector) );
 }
 
 void Quaternion::Normalize()
@@ -470,7 +470,7 @@ float Quaternion::AngleBetween( const Quaternion& q1, const Quaternion& q2 )
   //Formula for angle θ between two quaternion is:
   //θ = cos^−1 (2⟨q1,q2⟩^2 − 1), Where (q1,q2) is inner product of the quaternions.
   float X = from.mVector.Dot4(to.mVector);
-  float theta = acos( (2 * X * X) - 1);
+  float theta = acosf( (2 * X * X) - 1); // float arc cosine
 
   return theta;
 }
@@ -549,4 +549,3 @@ std::ostream& operator<<( std::ostream& o, const Quaternion& quaternion )
 }
 
 } // namespace Dali
-